Hi, Yes this is easily possible, you just need a 3rd network interface on the ASG where you connect the ISDN router. Name it WAN2. you need a dedicated transfer network between the isdn router and the asg.
Configure the default gateway on WAN2 but do not enable it yet.
Go to the wan link balancing tab and Add the WAN and WAN2 interfaces and select fail over mode. The order of the interfaces is important. The most upper interface is the master and always online.
Hi, Yes this is easily possible, you just need a 3rd network interface on the ASG where you connect the ISDN router. Name it WAN2. you need a dedicated transfer network between the isdn router and the asg.
Configure the default gateway on WAN2 but do not enable it yet.
Go to the wan link balancing tab and Add the WAN and WAN2 interfaces and select fail over mode. The order of the interfaces is important. The most upper interface is the master and always online.